﻿// Jinx AJAX Framework
// Copyright (C) 2008 Blake Hegerle
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using System;
using System.Linq;
using System.Collections.Generic;
using Core.Json;

namespace Jinx.Communications.Applications.Services
{
    public class Deserializer
    {
        public static object Map(string Json, Type Type)
        {
            return null;
        }

        public static object[] Map(string JsonArgument, IEnumerable<KeyValuePair<string, Type>> Parameters)
        {
            if (string.IsNullOrEmpty(JsonArgument))
                return null;

            var JsonData = JsonArgument.MapJson();

            return (from P in Parameters
                    select Map(JsonData, P.Key, P.Value)).ToArray();
        }

        private static object Map(IDictionary<string, object> JsonData, string Name, Type Type)
        {
            object Value;

            if (JsonData.TryGetValue(Name, out Value))
                if (Value != null)
                    return ObjectReflection.Coerce(Value, Type, ObjectFactory);

            return null;
        }

        private static object ObjectFactory(Type Type)
        {
            var Constructor = Type.GetConstructor(new Type[0]);

            if (Constructor == null)
                throw new Exception();

            return Constructor.Invoke(null);
        }
    }
}